ML25223A204
| ML25223A204 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 08/13/2025 |
| From: | Dariusz Szwarc NRC/RGN-III/DORS/RPB3 |
| To: | Paulhardt W Northern States Power Company, Minnesota |
| References | |
| IR 2025002 | |
| Download: ML25223A204 (1) | |
Text
Werner K. Paulhardt Jr.
Site Vice President Prairie Island Nuclear Generating Plant Northern States Power Company, Minnesota 1717 Wakonade Drive East Welch, MN 55089-9642
SUBJECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT - INTEGRATED INSPECTION REPORT 05000282/2025002 AND 05000306/2025002
Dear Werner K. Paulhardt Jr.:
On June 30, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Prairie Island Nuclear Generating Plant and discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report.
One finding of very low safety significance (Green) is documented in this report. This finding involved a violation of NRC requirements. We are treating this violation as a non-cited violation (NCV) consistent with Section 2.3.2 of the Enforcement Policy.
If you contest the violation or the significance or severity of the violation documented in this inspection report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; and the NRC Resident Inspector at Prairie Island Nuclear Generating Plant.
August 13, 2025
W. Paulhardt Jr.
2 This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, Dariusz Szwarc, Chief Reactor Projects Branch 3 Division of Operating Reactor Safety Docket Nos. 05000282 and 05000306 License Nos. DPR-42 and DPR-60
Enclosure:
As stated cc w/ encl: Distribution via LISTSERV Signed by Szwarc, Dariusz on 08/13/25
W. Paulhardt Jr.
3 Letter to Werner Paulhardt from Dariusz Szwarc dated August 13, 2025.
SUBJECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT - INTEGRATED INSPECTION REPORT 05000282/2025002 AND 05000306/2025002 DISTRIBUTION:
Tim Steadham RidsNrrPMPrairieIsland Resource RidsNrrDorlLpl3 RidsNrrDroIrib Resource Jack Giessner Mohammed Shuaibi Diana Betancourt-Roldan John Pelchat Jared Heck Jennifer Dalzell R3-DORS ADAMS Accession Number: ML25223A204
SUNSI Review
Non-Sensitive
Sensitive
Publicly Available
Non-Publicly Available OFFICE RIII NAME DSzwarc:anm DATE 08/13/2025 OFFICIAL RECORD COPY
Enclosure U.S. NUCLEAR REGULATORY COMMISSION Inspection Report Docket Numbers:
05000282 and 05000306 License Numbers:
DPR-42 and DPR-60 Report Numbers:
05000282/2025002 and 05000306/2025002 Enterprise Identifier:
I-2025-002-0059 Licensee:
Northern States Power Company Facility:
Prairie Island Nuclear Generating Plant Location:
Welch, MN Inspection Dates:
April 01, 2025, to June 30, 2025 Inspectors:
J. Bell, Branch Chief B. Bergeon, Senior Operations Engineer R. Farmer, Health Physicist T. Henning, Senior Operations Engineer M. Learn, Team Leader K. Pusateri, Resident Inspector D. Tesar, Senior Resident Inspector T. Wingfield, Operations Engineer Approved By:
Dariusz Szwarc, Chief Reactor Projects Branch 3 Division of Operating Reactor Safety
2
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Prairie Island Nuclear Generating Plant, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations Failure to Implement Structures Monitoring License Renewal Commitments as Described in the USAR.
Cornerstone Significance Cross-Cutting Aspect Report Section Mitigating Systems Green NCV 05000306/2025002-01 Open/Closed None 71111.15 The inspectors identified a Green finding and associated non-cited violation (NCV) of the Prairie Island Unit 2 Operating License Condition 2.C.(8)(b). Specifically, the licensee failed to implement the requirements of structures monitoring program inspections prior to October 29, 2014, to ensure that diesel equipment and vibration isolation elements for diesel equipment were inspected against established acceptance criteria to prevent the loss of intended function, as described in the License Renewal updated safety analysis report (USAR) supplement.
Additional Tracking Items None.
3 PLANT STATUS Unit 1 entered the inspection period at, and remained at, full-rated thermal power until April 13, 2025. Unit 1 was reduced to approximately 40 percent power for condenser tube cleaning from April 13 through April 19, 2025. On April 19, 2025, Unit 1 was returned to full-rated thermal power and remained at or near full-rated thermal power for the remainder of the inspection period except for brief power reductions to perform surveillance testing, or flexible power operations.
Unit 2 entered the inspection period at full-rated thermal power and remained at or near full-rated thermal power for the remainder of the inspection period.
INSPECTION SCOPES Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors performed activities described in IMC 2515, Appendix D, Plant Status, observed risk significant activities, and completed on-site portions of IPs. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY 71111.01 - Adverse Weather Protection Impending Severe Weather Sample (IP Section 03.02) (1 Sample)
(1)
The inspectors evaluated the adequacy of the overall preparations to protect risk-significant systems from impending severe weather (AB-2), level 4 storm on April 28, 2025.
71111.04 - Equipment Alignment Partial Walkdown Sample (IP Section 03.01) (4 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:
(1) 121 motor driven cooling water pump while aligned to B cooling water header on April 9, 2025 (2) 12 diesel-driven cooling water pump while aligned to A cooling water header on April 9, 2025 (3)
Unit 2 control rod drive power system on May 16, 2025 (4) 121 spent fuel pool (SFP) pump walkdown while 122 SFP pump out of service (OOS) for maintenance on May 27, 2025
4 71111.05 - Fire Protection Fire Area Walkdown and Inspection Sample (IP Section 03.01) (3 Samples)
The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:
(1)
Fire Detection Zone (FDZ) 31, 121 control room chiller room, auxiliary building, elevation 755' on April 22, 2025 (2)
FDZ 35, during continuous fire watch on May 1, 2025 (3)
FDZ 11, Fire Area 81, elevated risk due to 12 component cooling (CC) pump OOS maintenance on June 18, 2025 Fire Brigade Drill Performance Sample (IP Section 03.02) (1 Sample)
(1)
The inspectors evaluated the onsite fire brigade training and performance during an observation of crew five fire drill - fire in 2 GT transformer on June 2, 2025.
71111.07A - Heat Exchanger/Sink Performance Annual Review (IP Section 03.01) (1 Sample)
The inspectors evaluated readiness and performance of:
(1) 122 SFP heat exchanger eddy current test on May 19, 2025 71111.11A - Licensed Operator Requalification Program and Licensed Operator Performance Requalification Examination Results (IP Section 03.03) (1 Sample)
(1)
The inspectors reviewed and evaluated the licensed operator examination failure rates for the requalification annual operating exam administered from May 5, 2025, to June 13, 2025, and the biennial written examinations administered from May 5, 2025, to June 13, 2025.
5 71111.11B - Licensed Operator Requalification Program and Licensed Operator Performance Licensed Operator Requalification Program (IP Section 03.04) (1 Sample)
(1)
Biennial Requalification Written Examinations The inspectors evaluated the quality of the licensed operator biennial requalification written examination administered from May 5, 2025 to June 6, 2025.
Annual Requalification Operating Tests The inspectors evaluated the adequacy of the facility licensees annual requalification operating test administered from May 5, 2025, to June 6, 2025.
Administration of an Annual Requalification Operating Test The inspectors evaluated the effectiveness of the facility licensee in administering requalification operating tests required by 10 CFR 55.59(a)(2) and that the facility licensee is effectively evaluating their licensed operators for mastery of training objectives.
Requalification Examination Security The inspectors evaluated the ability of the facility licensee to safeguard examination material, such that the examination is not compromised.
Remedial Training and Re-examinations The inspectors evaluated the effectiveness of remedial training conducted by the licensee, and reviewed the adequacy of re-examinations for licensed operators who did not pass a required requalification examination.
Operator License Conditions The inspectors evaluated the licensees program for ensuring that licensed operators meet the conditions of their licenses.
Control Room Simulator The inspectors evaluated the adequacy of the facility licensees control room simulator in modeling the actual plant, and for meeting the requirements contained in 10 CFR 55.46.
71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01)
(1 Sample)
(1)
The inspectors observed and evaluated licensed operator performance in the control room during Unit 1 downpower for condenser waterbox cleaning on April 14, 2025.
6 Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
(1)
The inspectors observed and evaluated FLEX power operations in the control room on May 12, 2025.
71111.12 - Maintenance Effectiveness Maintenance Effectiveness (IP Section 03.01) (2 Samples)
The inspectors evaluated the effectiveness of maintenance to ensure the following structures, systems, and components (SSCs) remain capable of performing their intended function:
(1)
Joint maintenance on emergency diesel generator expansion joints on May 19, 2025 (2)
Inservice testing (IST) of cooling water valves during repairs on MV-32028 on June 25, 2025 71111.13 - Maintenance Risk Assessments and Emergent Work Control Risk Assessment and Management Sample (IP Section 03.01) (5 Samples)
The inspectors evaluated the accuracy and completeness of risk assessments for the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:
(1) 22 diesel-driven cooling water pump restoration steps and sequence on April 2, 2025 (2)
Cable bundle support issue for Yellow channel reactor protection system on April 3, 2025 (3) 21 safeguards exhaust ventilation fan risk management on April 23, 2025 (4) 122 SFP heat exchanger CC leak during disassembly on May 20, 2025 (5)
Unit 2 non-urgent rod control failure on May 19, 2025 71111.15 - Operability Determinations and Functionality Assessments Operability Determination or Functionality Assessment (IP Section 03.01) (5 Samples, 2 Partials)
The inspectors evaluated the licensees justifications and actions associated with the following operability determinations and functionality assessments:
(1)
Prompt operability for 121 control room air handler degraded boot on April 23, 2025 (2)
Immediate operability of battery room SSCs with rising temperatures on May 2, 2025 (3)
Prompt operability determination for CAP 501000098987, 25PIR-PI D5 ENG 1 Coolant Leak, on May 23, 2025 (4)
Flux probe stuck inserted into core on May 28, 2025 (5)
CST operability with 21 CST contamination on June 16, 2025 (6)
(Partial)
D6 operability for through-wall leak on April 1, 2025 (7)
(Partial)
Operability of void in 1RH-21 pipe and potential gas intrusion from reactor coolant system in Mode 1 (QIM 501000099808) on June 11, 2025
7 71111.24 - Testing and Maintenance of Equipment Important to Risk The inspectors evaluated the following testing and maintenance activities to verify system operability and/or functionality:
Post-Maintenance Testing (PMT) (IP Section 03.01) (7 Samples)
(1) 121 control room air handler PMT; Work Order (WO) 700153909, revision 0, on April 21, 2025 (2)
D5 EDG PMT per WO 700154998 created 5/22/2025, on May 22, 2025 (3)
WO 700149207, SP 1106A 12 Diesel CL Pmp Monthly - PMT Run, on May 5, 2025 (4)
PE 3002-5-22, 22 DD [diesel-driven] CLG WTR Pump 10 Year Relay Replacement, revision 5, on April 4, 2025 (5)
Diesel-driven fire pump charger replacement PMT on May 21, 2025 (6)
PMT on 122 spent fuel pool heat exchanger on June 12, 2025 (7)
WO 700145993, Train A CTMT FCU [fan cooling unit] CL [cooling water] QTR, on June 11, 2025 Surveillance Testing (IP Section 03.01) (3 Samples)
(1)
SP 2251, Caustic Addition Valve Quarterly Test, revision 19, on April 10, 2025 (2)
SP 2307, D6 Diesel Generator 6 Month Fast Start Test, revision 59, on April 30, 2025 (3)
SP 2089A, Train A RHR Pump and Suction Valve from the RWST Quarterly Test, revision 40, on May 15, 2025 Inservice Testing (IST) (IP Section 03.01) (1 Sample)
(1)
WO 700143234, SP 1155A CC Sys Qtr Test Trn A - Comprehensive IST Test, on May 5, 2025 Diverse and Flexible Coping Strategies (FLEX) Testing (IP Section 03.02) (1 Sample)
(1)
TP 1877B, 122 Diesel Generator 300KW 3 Year Test and Inspection, on May 2, 2025 RADIATION SAFETY 71124.07 - Radiological Environmental Monitoring Program Environmental Monitoring Equipment and Sampling (IP Section 03.01) (1 Sample)
(1)
The inspectors evaluated environmental monitoring equipment and observed collection of environmental samples.
Radiological Environmental Monitoring Program (IP Section 03.02) (1 Sample)
(1)
The inspectors evaluated the implementation of the licensees radiological environmental monitoring program.
8 GPI Implementation (IP Section 03.03) (1 Sample)
(1)
The inspectors evaluated the licensees implementation of the Groundwater Protection Initiative (GPI) program to identify incomplete or discontinued program elements.
71124.08 - Radioactive Solid Waste Processing & Radioactive Material Handling, Storage, & Transportation Radioactive Material Storage (IP Section 03.01) (2 Samples)
The inspectors evaluated the licensees performance in controlling, labeling and securing the following radioactive materials:
(1) area 19 satellite radiologically controlled area (2) containers in the rad waste storage building barrel yard Radioactive Waste System Walkdown (IP Section 03.02) (2 Samples)
The inspectors walked down the following accessible portions of the solid radioactive waste systems and evaluated system configuration and functionality:
(1) aerated drains treatment system (2) spent resin tank (SRT) and associated resin sluice piping Waste Characterization and Classification (IP Section 03.03) (2 Samples)
The inspectors evaluated the following characterization and classification of radioactive waste:
(1) baffle bolt and clevis bolt maintenance filters (2) primary bead resin Shipment Preparation (IP Section 03.04) (1 Sample)
(1)
The inspectors observed the preparation of radioactive shipment 25-021 of an oil and grease chemistry sample on June 5, 2025.
Shipping Records (IP Section 03.05) (4 Samples)
The inspectors evaluated the following non-excepted radioactive material shipments through a record review:
(1)24-068, 2 Sealands of dry active waste (DAW) with friable asbestos, LSA-I (2)24-071, 5 containers of Westinghouse outage equipment, SCO-II (3)25-006, resin liner 179, LSA-II (4)25-012, 2 Sealands of DAW, LSA-II
9 INSPECTION RESULTS Failure to Implement Structures Monitoring License Renewal Commitments as Described in the USAR.
Cornerstone Significance Cross-Cutting Aspect Report Section Mitigating Systems Green NCV 05000306/2025002-01 Open/Closed None 71111.15 The inspectors identified a Green finding and associated non-cited violation (NCV) of the Prairie Island Unit 2 Operating License Condition 2.C.(8)(b). Specifically, the licensee failed to implement the requirements of structures monitoring program inspections prior to October 29, 2014, to ensure that diesel equipment and vibration isolation elements for diesel equipment were inspected against established acceptance criteria to prevent the loss of intended function, as described in the License Renewal updated safety analysis report (USAR) supplement.
==
Description:==
Condition 2.C.(8)(b) of Renewed Facility Operating License for Prairie Island Nuclear Generating Plant, Units 1 and 2, dated October 16, 2009, and supplemented on April 15, 2011, and the licensees USAR supplement submitted pursuant to 10 CFR 54.21(d) describe certain aging management programs (AMPs) and activities to be completed before the period of extended operation. The license condition required these activities to be completed no later than October 29, 2014.
One of these AMPs is the structures monitoring program, with enhancements that added inspections for diesel equipment, including its vibration isolation elements, evaluated against established acceptance criteria. This AMP is described in License Renewal USAR Supplement Appendix L, Section L.2.38, Structures Monitoring Program. This section states in part: The Structures Monitoring Program is a condition monitoring program that manages aging effects in structures, supports and structural components, including bolting, within the scope of License Renewal. The program performs periodic visual inspections to monitor the condition of structures, supports and components, including bolting, against established acceptance criteria to ensure that degradation is identified, evaluated, and, when necessary, corrected such that there is no loss of intended function.
On February 24, 2025, during a routine surveillance test on the Unit 2 D6 emergency diesel generator (EDG), a through-wall leak was discovered on the high temperature (HT) cooling water piping. On April 4, 2025, an operability evaluation of the D6 EDG determined in part that the failure mechanism was vibration-induced wear [] that developed slowly after approximately 35 years of operation. This through-wall leak resulted in the D6 EDG being removed from service and unavailable to perform its safety function, during implementation of the repairs.
During their review, the inspectors were unable to identify any record of planned maintenance activities which accomplished the required inspections. In addition, aging management inspection walkdowns, which are performed every 2 years, were generic in nature and did not have specific established acceptance criteria for the diesel equipment, nor the vibration isolation elements for diesel equipment. The inspectors concluded that the License Renewal requirement that components within the scope of the program, diesel equipment and the
10 vibration isolation elements for diesel equipment, be inspected and evaluated against established acceptance criteria to ensure that degradation is identified, evaluated, and when necessary, corrected such that there is no loss of intended function, were not met.
Corrective Actions: The licensee has corrected the through-wall leak caused by the long-term vibration-induced wear and performed extent of condition walkdowns of the other D5 and D6 EDG engines. In addition, a CAP was initiated to address the acceptance criteria.
Corrective Action References:
501000095507, Through Wall Coolant Leak 501000096290, D6 Coolant Leak POD did not Address Loop 501000101168, D6 HT Coolant Pipe - Acceptance Criteria Performance Assessment:
Performance Deficiency: The licensees failure to implement aging management program requirements as described by Section L.2.38 of License Renewal USAR Supplement Appendix L (a.k.a., the Structure Monitoring AMP) prior to October 29,2014, was contrary to Operating License Condition 2.C.(8)(b), and was a performance deficiency.
Screening: The inspectors determined the performance deficiency was more than minor (MTM) because it was associated with the Procedure Quality attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the failure to incorporate established acceptance criteria into the AMP failed to ensure the identification, evaluation, and correction of the long-term vibration-induced wear of the D6 EDG cooling water piping, resulting in a through-wall leak, and the D6 EDG being taken out of service for repairs rendering it unavailable and unable to perform its intended safety function.
Significance: The inspectors assessed the significance of the finding using IMC 0609 Appendix A, The Significance Determination Process (SDP) for Findings At-Power.
The Inspectors determined that the answer to all six (6) screening questions of Exhibit 2 -
Mitigating Systems Screening Questions, Section A Mitigating SSCs and PRA Functionality (except Reactivity Control Systems) were answered No, based upon the conclusion that the D6 EDG would fulfill its 24-hour PRA mission time, resulting in the issue screening to Green.
Cross-Cutting Aspect: None Enforcement:
Violation: Condition 2.C.(8)(b) of Renewed Facility Operating License for Prairie Island Nuclear Generating Plant, Units 1 and 2, dated October 16, 2009, and supplemented on April 15, 2011, states, The License Renewal USAR Supplement describes certain programs to be implemented and activities to be completed prior to the Period of Extended Operation (PEO). Additionally, it states, The licensee shall implement those new programs and enhancements to existing programs no later than October 29, 2014. Appendix L of the USAR (a.k.a., the License Renewal USAR Supplement), Section L.2.38, Structures Monitoring Program AMP, specifies in part that The program performs periodic visual inspections to monitor the condition of structures, supports and components, including bolting, against established acceptance criteria to ensure that degradation is identified, evaluated, and, when necessary, corrected such that there is no loss of intended function.
11 Commitment Number 30 from USAR Appendix L, Table L.5, License Renewal Commitments, state in part that, The following structures, components, and component supports will be added to the scope of the inspections: [...] diesel equipment, [] and [...]
vibration isolation elements for diesel equipment.
Contrary to the above, the licensee failed to implement the Structures Monitoring AMP, as described in the License Renewal UFSAR Supplement, prior to October 29, 2014.
Specifically, the licensee did not incorporate into their AMP established acceptance criteria to ensure that degradation was identified, evaluated, and corrected to prevent loss of function for diesel equipment or vibration isolation elements for diesel equipment. Ultimately, this allowed long-term vibration-induced degradation to go uncorrected, culminating in a through-wall leak in the HT cooling water piping on the D6 EDG. The degradation, which developed over approximately 35 years of operation, ultimately rendered the D6 EDG inoperable and unavailable from February 26, 2025, through February 27, 2025.
Enforcement Action: This violation is being treated as a non-cited violation, consistent with Section 2.3.2 of the Enforcement Policy.
EXIT MEETINGS AND DEBRIEFS The inspectors verified that no proprietary information was retained or documented in this report.
On June 30, 2025, the inspectors presented the integrated inspection results to Werner Paulhardt, Site Vice President, and other members of the licensee staff.
On May 23, 2025, the inspectors presented the biennial requalification program inspection results to Werner Paulhardt, Site Vice President, and other members of the licensee staff.
On June 6, 2025, the inspectors presented the radiation protection inspection results to Werner Paulhardt, Site Vice President, and other members of the licensee staff.
12 DOCUMENTS REVIEWED Inspection Procedure Type Designation Description or Title Revision or Date 71111.01 Procedures AB-2 Severe Weather 52 71111.04 Procedures 1C20.7 D1/D2 Diesel Generators 60 71111.04 Procedures C1.1.35-3 Cooling Water System 48 71111.04 Procedures C16-1 Spent Fuel Pool Cooling Checklist 14 71111.05 Fire Plans FDZ 11 Bus Rms 15 & 16 Unit 1 715' 47 71111.05 Fire Plans FDZ 31 121 & 122 Control Room Chiller Aux Bldg 755' 41 71111.05 Fire Plans FDZ 35 21 & 22 Battery Rooms 52 71111.07A Drawings XH-106-86 Isometric Spent Fuel Cooling Unit 1 76 71111.11B Corrective Action Documents 501000075003 Equipment Position Not Identified 07/02/2023 71111.11B Corrective Action Documents 501000077842 Loss of CT-11 Due to 1H4 Trip 10/17/2023 71111.11B Corrective Action Documents 501000077958 Unit 1 Reactor Trip 10/19/2023 71111.11B Corrective Action Documents 501000079970 TS 3.7.12 FHA Issues 12/12/2023 71111.11B Corrective Action Documents 501000082457 PU&A When Performing 2C1.2-M2 03/04/2024 71111.11B Corrective Action Documents 501000083200 SP 1106B Reperformed 03/22/2024 71111.11B Corrective Action Documents 501000084597 SP 1159 Completed Unsat 04/27/2024 71111.11B Corrective Action Documents 501000084692 IST Inoperable CL Return Valves 04/28/2024 71111.11B Corrective Action Documents 501000087599 1R-37 OOS Impacts to TS 3.7.12 07/11/2024 71111.11B Corrective Action Documents 501000095753 SBT Data Not Sent to Records 03/03/2025 71111.11B Corrective Action Documents 501000095767 Exam Security (STA U/I) 03/04/2025 71111.11B Corrective Action Documents 501000095849 Missing 396 Missing from File 03/06/2025
13 Inspection Procedure Type Designation Description or Title Revision or Date 71111.11B Corrective Action Documents 501000095852 Operator LOR Training Not Completed 03/05/2025 71111.11B Miscellaneous 1C1.2-BOP Unit 1 Balance of Plant Systems Startup 10/27/2022 71111.11B Miscellaneous 1C1.2-M1 Unit 1 Startup to Mode 1 10/27/2022 71111.11B Miscellaneous 1C1.2-M2 Unit 1 Startup to Mode 2 10/27/2022 71111.11B Miscellaneous 1C1.4 Unit 1 Power Operation 10/29/2022 71111.11B Miscellaneous 1Q2023 SUPP TP 1850 Crew Watchstanding Logs (1Q2023) 09/22/2023 71111.11B Miscellaneous 1Q2023 TP 1850 Crew Watchstander Verification 09/22/2023 71111.11B Miscellaneous 2025 Biennial Sample Plan Exam Cross Check 03/31/2025 71111.11B Miscellaneous 2025 LOR Operational Sample Plan Exam Cross Check 05/01/2025 71111.11B Miscellaneous 2403 Scenario Based Testing LOR Week 1 Crew 6 Group 1 Validation 04/19/2024 71111.11B Miscellaneous 2404S Scenario Based Testing ILT Validation 2024-04 07/19/2024 71111.11B Miscellaneous 25R-ADMIN-014 Job Performance Measure 0
71111.11B Miscellaneous 25R-ADMIN-018 Job Performance Measure 0
71111.11B Miscellaneous 25R-ADMIN-019 Job Performance Measure 0
71111.11B Miscellaneous 25R-IP-022AP Job Performance Measure 0
71111.11B Miscellaneous 25R-IP-023 Job Performance Measure 0
71111.11B Miscellaneous 25R-IP-028AP Job Performance Measure 0
71111.11B Miscellaneous 25R-IP-030 Job Performance Measure 0
71111.11B Miscellaneous 25R-SIM-003 Job Performance Measure 0
71111.11B Miscellaneous 25R-SIM-004 Job Performance Measure 0
71111.11B Miscellaneous 25R-SIM-006AP Job Performance Measure 0
71111.11B Miscellaneous 25R-SIM-010AP Job Performance Measure 0
71111.11B Miscellaneous 3Q2023 SUPP TP 1850 Crew Watchstanding Logs (3Q2023) 03/23/2024 71111.11B Miscellaneous 3Q2023 TP 1850 Crew Watchstander Verification 03/23/2024 71111.11B Miscellaneous 501000095767 Evaluation of STA Exam Security Event 0
71111.11B Miscellaneous Appendix C1B Appendix - Reactor Startup Simulator testing 10/19/2022
14 Inspection Procedure Type Designation Description or Title Revision or Date 71111.11B Miscellaneous Appendix D30 Post Refueling Startup Testing 10/20/2022 71111.11B Miscellaneous Appendix D32 Temperature Coefficient Measurement at Hot Zero Power 10/22/2022 71111.11B Miscellaneous Appendix D51 Temperature Coefficient Measurement at Power 10/22/2022 71111.11B Miscellaneous N-01 Core Performance Testing Unit 1 Cycle 33 07/12/2023 71111.11B Miscellaneous PI-LOR-NRC-2501S Simulator Exercise Guide 0
71111.11B Miscellaneous PI-LOR-NRC-2502S Simulator Exercise Guide 0
71111.11B Miscellaneous PI-LOR-NRC-2504S Simulator Exercise Guide 0
71111.11B Miscellaneous PI-LOR-NRC-2506S Simulator Exercise Guide 0
71111.11B Miscellaneous RR-01 Simulator Repeatability (Cycle 33) 05/03/2024 71111.11B Miscellaneous RT-01 Simulator Real Time Measurement (Cycle 33) 07/01/2024 71111.11B Miscellaneous S-01 Steady State Tests (Cycle 33) 03/17/2023 71111.11B Miscellaneous SRC 2024-02 Simulator Review Committee 2024-02 09/16/2024 71111.11B Miscellaneous SWR C3D-023 RHR System Trouble Alarm 04/12/2023 71111.11B Miscellaneous SWR C3D-037 Ovation Reset/Snap Conflicts Causing Crashes 02/07/2024 71111.11B Miscellaneous SWR C3D-044 5PS20 Power Supply Failure 24 VDC 09/05/2023 71111.11B Miscellaneous SWR C4D-026 CNTMT & RCS Pressure Post LOCA 07/18/2024 71111.11B Miscellaneous SWR C5D-025 Unexpected Simulator Critical Alarm 05/13/2025 71111.11B Miscellaneous T-03 Simultaneous Closure of All Main Steam Isolation Valves (Cycle 33) 03/18/2024 71111.11B Miscellaneous T-05 Trip of Any Single Reactor Coolant Pump (Cycle 33) 03/18/2024 71111.11B Miscellaneous T-09 Maximum Size Unisolable Main Steam Line Rupture (Cycle 33) 05/26/2023 71111.11B Miscellaneous T-10 Slow Primary System Depressurization to Saturated Condition with Pressurizer Relief or Safety Valve Stuck Open (Inhibit Activation of High Pressure ECCS) (Cycle 33) 07/02/2024 71111.11B Miscellaneous T-11 Maximum Design Load Rejection (Cycle 33) 07/02/2024 71111.11B Miscellaneous Week 3 Crew 2 RO Biennial Written Exam Written Exam 04/28/2025
15 Inspection Procedure Type Designation Description or Title Revision or Date 71111.11B Miscellaneous Week 3 Crew 2 SRO Biennial Written Exam Written Exam 04/28/2025 71111.11B Procedures FL-LOR Fleet Licensed Operator Requalification Training Program Description 14 71111.11B Procedures FP-T-SAT-40 Implementation Phase 20 71111.11B Procedures FP-T-SAT-71 Exam Security 12 71111.11B Procedures FP-T-SAT-73 Licensed Operator Requalification Program Examinations 14 71111.11B Procedures FP-T-SAT-74 NRC Operator License Application & Renewal Requirements 13 71111.11B Procedures FP-T-SAT-75 Job Performance Measure & Simulator Exercise Guide Development 8
71111.11B Procedures FP-T-SAT-80 Simulator Configuration Management 12 71111.11B Procedures FP-T-SAT-81 Simulator Testing and Documentation 11 71111.11B Self-Assessments QF0406 2025 PINGP 71111.11 03/07/2025 71111.11Q Procedures 1C1.4 Unit 1 Power Operation 80 71111.12 Engineering Evaluations 602000024617 Steam from 12 RHR Pit After PMP Start 12/05/2024 71111.12 Miscellaneous 1067-0121-RPT-001 RHR Pump Seal Failure Evaluation 0
71111.12 Procedures FP-WM-MMP-01 Minor Maintenance Process 7
71111.12 Procedures FP-WM-WOE-01 Work Order Execution Process 26 71111.12 Procedures FP-WM-WOI-01 Work Identification, Screening, Validation, and Cancellation 30 71111.13 Procedures 1C5 Control Rod and Rod Position Indication Systems 32 71111.13 Procedures C35 Cooling Water 100 71111.13 Procedures FP-E-SE-03 10 CFR 50.59 and 72.48 Processes 20 71111.15 Corrective Action Documents 501000098156 22 Battery Room Temp above C18.1 Limit 05/01/2025 71111.15 Engineering Evaluations 602000017241 Request Number 417; Provide Copies of the Monthly Inspections that have been done on the AFW Inlet with the Leak 06/18/2025 71111.15 Engineering Evaluations 602000017241 Request No.: 414; HT Cooling Water Pipe Characteristics 05/08/2025 71111.15 Engineering Evaluations 602000017241 Request No.: 416; For the Recently Performed Analysis on 121 SFP HX Describe the Analysis that was Completed to 06/18/2025
16 Inspection Procedure Type Designation Description or Title Revision or Date Leave the Probe in the Heat Exchanger 71111.15 Engineering Evaluations 602000017425 MCC 1MA2 High Temp; CAP: 501000100300 0
71111.15 Engineering Evaluations 602000017425 CAP 501000095507; POD 500000334155; Due to Leak on the D6 Engine 1 High Temperature Cooling Water Pipe 1
71111.15 Engineering Evaluations 602000017425 Prompt Operability Determination, CAP 501000095507, POD 500000334155, Rev. 1; Leak on the D6 Engine 1 High Temperature Cooling Water Pipe 04/04/2025 71111.15 Miscellaneous 608000001293 Auxiliary Building High Temperature HELB Evaluation (130F/150F) 06/25/2025 71111.15 Miscellaneous Summary No.: 2-MIC-2147 UT Examination; Procedure: FP-PE-NDE-425; Work Scope:
2R34 MIC; Report No.: 2R34-MIC-001; WO: 700148314-0060 4
71111.15 Miscellaneous Wartsila Technical Bulletin Cracks on Cylinder Heads, Engine Type UD30/33/45, Issue 2 02/28/2014 71111.15 Procedures FP-E-SE-05 Strategic Engineering Walkdowns 9
71111.15 Procedures H10.1 ASME Inservice Testing Program 42 71111.15 Procedures SP 1468.1 Unit 1 GL-08-01 Inspections for Mode 1,3, and 4 8
71111.24 Drawings NE-40014 V Sheet 3 SK-601000002794-01 Diesel Fire Pump 01 71111.24 Procedures FP-WM-PLA-01 Work Order Planning Process 43 71111.24 Procedures FP-WM-PMT-01 Post-Maintenance Testing 2
71111.24 Procedures SP 2251 Caustic Addition Valve Quarterly Test 19 71111.24 Work Orders WO 700128798 22 DD CL PMP Relays Replacements 03/30/2025 71111.24 Work Orders WO 700143234 SP 1155A CC SYS QTR TEST TRN A 05/07/2025 71111.24 Work Orders WO 700149207 SP 1106A 12 DIESEL CL PMP MNTHLY 05/16/2025 71111.24 Work Orders WO 700153447 Replace 122 DDFP A Battery Charger 05/21/2025 71124.07 Corrective Action Documents 501000095652 REMP TLDs Irradiated in Transit 02/24/2025 71124.07 Corrective Action Documents Resulting from 501000099647 Dose Tracking not Performed Per Procedure 06/05/2025
17 Inspection Procedure Type Designation Description or Title Revision or Date Inspection 71124.07 Corrective Action Documents Resulting from Inspection 501000099648 Septic System Question 06/05/2025 71124.07 Miscellaneous FP-R-LIC-21 Records of Spills or Other Unusual Occurrences 01/15/2020 71124.07 Miscellaneous L-PI-21-023 2020 Annual Radiological Environmental Monitoring Program Report 05/14/2024 71124.07 Miscellaneous L-Pl-22-023 2021 Annual Radiological Environmental Monitoring Program Report 05/10/2022 71124.07 Miscellaneous L-Pl-23-011 2022 Annual Radiological Environmental Monitoring Program Report 05/08/2023 71124.07 Miscellaneous L-Pl-24-020 2023 Annual Radiological Environmental Monitoring Program Report 05/09/2024 71124.07 Miscellaneous L-Pl-25-014 2024 Annual Radiological Environmental Monitoring Program Report 05/10/2025 71124.07 Miscellaneous RPC REMP LAND USE CENSUS 2024 Land Use Census at Prairie Island 10/12/2024 71124.07 Procedures FP-CY-GWPP-01 Fleet Groundwater Protection Program 10 71124.07 Procedures H4 Offsite Dose Calculation Manual (ODCM) 33 71124.08 Corrective Action Documents 501000076498 RAM Sources not in Designated Location 09/01/2023 71124.08 Corrective Action Documents 501000085925 Radman Showing Non-Existent Radioisotope 05/28/2024 71124.08 Corrective Action Documents 501000092508 NOS: RW Shipment Document Deficiencies 11/20/2024 71124.08 Corrective Action Documents 501000092592 Physical Security Precautions of RAM 11/21/2024 71124.08 Corrective Action Documents 501000092613 Qual of Rad Mat Ship Supervisor Designee 11/21/2024 71124.08 Corrective Action Documents 501000094094 FP-RP-RW-02 Has Misleading Information 01/15/2025 71124.08 Corrective Action 501000094439 Increased Barrel Yard Area Dose Rates 01/27/2025
18 Inspection Procedure Type Designation Description or Title Revision or Date Documents 71124.08 Corrective Action Documents Resulting from Inspection 501000099592 NRC RAD Ram Tag Illegible 06/04/2025 71124.08 Corrective Action Documents Resulting from Inspection 501000099600 NRC RAD Backlog of Rad Waste 06/04/2025 71124.08 Corrective Action Documents Resulting from Inspection 501000099611 NRC RAD Multiple DOP Testing Stickers 06/04/2025 71124.08 Miscellaneous Fuel Integrity Radiochemistry Review, 1st Quarter 2025 Original 71124.08 Miscellaneous QF1281 Sample Characterization Loading Form - Baffle Bolt and Clevis Bolt Maintenance Filters 01/07/2025 71124.08 Miscellaneous QF1281 Sample Characterization Loading Form - Primary Bead Resin 11/09/2024 71124.08 Miscellaneous QF1281 Sample Characterization Loading Form - Liner 179 11/09/2024 71124.08 Procedures B21B Liquid Waste System 15 71124.08 Procedures D59 Process Control Program for Processing/Dewatering of Radioactive Waste from Liquid Systems 13 71124.08 Procedures FP-RP-CRS-01 Control, Inventory and Leak Testing of Radioactive Sources 18 71124.08 Procedures FP-RP-RW-02 Radioactive Shipping Procedure 25 71124.08 Procedures FP-RP-RW-04 Creating Radioactive Material Packages for Transportation Offsite 1
71124.08 Procedures FP-RP-RW-06 Create Radioactive Packages Using Radman 2
71124.08 Procedures RPIP 1320 Monitoring of Rad Waste in Interim Storage 10 71124.08 Procedures RPIP 1330 Satellite RCA Process 14 71124.08 Self-Assessments QF0406 Snapshot Assessment of Receipt, Storage, and Shipment of Radioactive Materials 02/21/2025 71124.08 Shipping Records24-068 2 Sealands DAW, Contains Friable Asbestos 12/03/2024 71124.08 Shipping Records24-071 5 Westinghouse Outage Equipment 12/09/2024 71124.08 Shipping Records25-006 Liner 179 02/11/2025
19 Inspection Procedure Type Designation Description or Title Revision or Date 71124.08 Shipping Records25-012 2 Sealands DAW 04/08/2025 71124.08 Work Orders WO 700128884 RADIOACTIVE SRCE INVENTORY / LEAK CK 07/22/2024 71152A Work Orders WO 700112675 RPIP 5001 D5/D6 FO STORAGE TK INSP 07/16/2024